once it's gone it's gone. >> stephen: our helium supply is running out! and we have no other source of helium -- other than hunting balloons in the wild. but they're hard to catch, as seen in this classic french nature documentary. and thanks to their natural camouflage abilities, they can disguise themselves as almost any animal: dog, giraffe, or even a snake. no, jimmy, the balloon versions, not the real ones! what? wow, they're good. this helio-crisis hits home for me because i have a serious medical condition. due to the massive size of my balls, my natural voice is extremely low. [laughter] i have a prescription for helium to maintain this pitch you hear now let me show you. [in a very low voice] this is how i normally talk. it's dangerous.